The item name and icon is automatically generated from the page name so make sure the page name is correct before starting.

Where found - This field is entered manually. Separate multiple entries with a comma.

For Example: Where found=Badlands, Coniferous

Required by - Automatically generated. If an item is missing then go to that items page and add the missing item to the 'Objects required=' section.

Proficiency values - These fields are entered manually. Enter the value for each proficiency that the inspirational gives. Leave blank any proficiencies that the inspirational does not give.

For Example: Arts & Crafts=100

Artifact values - These fields are entered manually. Enter the value for Difficulty, Profiency Type and for each artifact type. Leave blank any artifact type value that the artifact item does not give.

Liftable? - If the structure can be lifted at any time enter 'Yes'. If the structure can only be lifted when empty then enter 'Only when empty'. If the structure can never be lifted enter 'No' or leave blank (defaults to 'No').

For Example: Liftable?=Only when empty

Hit points - Enter the amount of hit points the structure has. Leave blank if unknown and use the structures talk page to work with the community to figure out the hit point value.

For Example: Hit points=100

Soak value

Enter the soak value of the structure. Leave blank if unknown and use the structures talk page to work with the community to figure out the soak value.

For Example: Soak value=50

Required by - Automatically generated. If an item is missing then go to that items page and add the missing item to the 'Objects required=' section.

It's the same structure like in .salem directory in your home directory and so you can find an icon in this way too.
Just look into: C:\Users\username\.salem\cache\res\gfx\invobjs\
You can sort by date, find the name of last new items and set it in Path of API like above.